She burns 250 by herself and she burns 3 times as many with her sister.
Multiply the calories by herself by 3:
250 x 3 = 750
Now you need to multiply that by the number of hours.
The formula is a. t[c(h)] = 750h
All of them except A and C are equivalent.
Answer:
16/18
24/27
extra: 32/36
Step-by-step explanation:
Multiply the numerator and the denominator by any number and whatever comes out is considered equivalent to that. :)
